code covarage for srid, GeomFromText with 2 parameters
code covarage foe print() method of gis functions


mysql-test/r/gis.result:
  code covarage for srid, GeomFromText with 2 parameters
  code covarage foe print() method of gis functions
mysql-test/t/gis.test:
  code covarage for srid, GeomFromText with 2 parameters
  code covarage foe print() method of gis functions
  + commented test for issimple() (bugreport sent)
sql/item_geofunc.h:
  fixed printability of gis functions